28145102146 has 16 divisors (see below), whose sum is σ = 49425546240. Its totient is φ = 11767986720.

The previous prime is 28145102143. The next prime is 28145102189. The reversal of 28145102146 is 64120154182.

It is not an unprimeable number, because it can be changed into a prime (28145102143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24516066 + ... + 24517213.

It is an arithmetic number, because the mean of its divisors is an integer number (3089096640).

Almost surely, 2^28145102146 is an apocalyptic number.

28145102146 is a deficient number, since it is larger than the sum of its proper divisors (21280444094).

28145102146 is a wasteful number, since it uses less digits than its factorization.

28145102146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49033329.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 28145102146 in words is "twenty-eight billion, one hundred forty-five million, one hundred two thousand, one hundred forty-six".